CN101626795A - Disposable device for ejecting a liquid or pasty product - Google Patents
Disposable device for ejecting a liquid or pasty product Download PDFInfo
- Publication number
- CN101626795A CN101626795A CN200880007436A CN200880007436A CN101626795A CN 101626795 A CN101626795 A CN 101626795A CN 200880007436 A CN200880007436 A CN 200880007436A CN 200880007436 A CN200880007436 A CN 200880007436A CN 101626795 A CN101626795 A CN 101626795A
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- China
- Prior art keywords
- main body
- bar
- spray liquid
- pasty product
- pawl
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
- A61M5/31581—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod performed by rotationally moving or pivoting actuator operated by user, e.g. an injection lever or handle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3129—Syringe barrels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
- A61M2005/2403—Ampoule inserted into the ampoule holder
- A61M2005/2407—Ampoule inserted into the ampoule holder from the rear
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
- A61M2005/2485—Ampoule holder connected to rest of syringe
- A61M2005/2492—Ampoule holder connected to rest of syringe via snap connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M2005/341—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub angularly adjustable or angled away from the axis of the injector
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/3159—Dose expelling manners
- A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
- A61M5/31595—Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
Landscapes
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Coating Apparatus (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
- Food-Manufacturing Devices (AREA)
- Formation And Processing Of Food Products (AREA)
Abstract
Device for ejecting a liquid or pasty product, comprising a body (2) that has a portion (2a) designed to contain the product to be ejected and that has a hole (13) for ejecting the product, a rack (3) that moves in a bore (20) in the body (2) and causes the volume of the portion (2a) designed to contain the product to vary, and a rack (3) movement mechanism comprising a pivoting lever (1) and a pawl (4) for acting on the rack (3), which device is characterized in that the pawl (4) and the lever (1) form a one-piece plastics structure.
Description
Technical field
[01] the present invention relates to a kind of spray fluid product or pasty product device, with make and the method for the described device of providing and delivering.
Background technology
[02] known patent application FR 2 535 206 proposes a kind of dental syringe that is used for inner ligament injection.This syringe can be injected at product by very thin and flexible pin and be positioned at jawbone and interdental ligament.This syringe mainly comprises: the main body of an elongation is installed on this main body by moving the mechanism that pushes away post control injection; One receptacle stand, the container of filling liquid to be injected is set in this receptacle stand; An and joint that contains entry needle.In order to solve the problem that district's difficulty is implemented in injection of leading to, syringe body has the injection head with the axis angulation of syringe body.Dismountable pin is installed on the main body before implementing injection, is removed after the injection.The mechanism of control injection mainly comprises bar, and this bar is hinged on the syringe body and acts on by pawl and pushes away post, the rack tooth position contacting that pawl is hinged on the bar and is brought to and pushes away on the post to be realized.Push away in the tract that post realized in syringe body by translational guidance.In addition, push away post and also have a cannelure, this cannelure cooperates with a screw rod, and this screw rod is solid and lead in the described tract rotation with the resistance stop post by spiral shell radially with respect to tract.In addition, mechanism also has detent, when the action that fails in bar, and the retreating of this detent resistance stop post.This detent is brought back to and the contacted position of the tooth of tooth bar, and by acting on button, makes this detent away from this position, pushes away post and rests on and treat the spray product container on it thereby eliminate injection pressure and/or change.This device has some shortcomings.On the one hand, it realizes complexity and cost height.On the other hand, it has angle and the corner that exists in the shape, particularly material of numerous parts and complexity.These angles and corner form the zone that is difficult to touch, and therefore, very are difficult to cleaning and are difficult to sterilization thus.
[03] in order to remedy above-mentioned shortcoming, document WO 2005/007224 proposes a kind of injection device, and this injection device has simpler structure, and is easy to dismounting and cleaning.This device comprises: main body; Be used for the splendid attire product and be furnished with the parts in the aperture that this product of spray uses; The post that pushes away of being furnished with tooth, the described post that pushes away moves in the tract of main body, and the volume that is used in the parts of splendid attire product changes; And be used to make the mechanism that post moves that pushes away that is connected to main body, this mechanism comprises detachably hinged bar, this hinge bar is pulled by back-moving spring, and act on the tooth that pushes away post by hinge finger and detent, described hinge finger is hinged on the described bar and is brought back to described by spring and pushes away the contacted position of post, and described detent is brought back to and the described contacted position of post that pushes away.Although obtaining to simplify greatly and have removable link convenient for cleaning, this device is not can reach gratifying sanitation degree and always need a meticulous cleaning stage.In addition, the realization that removably connects between bar and the apparatus main body can impair the effectiveness of device, and is relatively poor because the intensity of bar of big active force is born in this connection can cause carrying out spray the time.At last, aforesaid scheme needed at least one locality pre-assembled before its dispensing, otherwise its assembling meeting is owing to the quantity of device element seems too limited.
Summary of the invention
[04] therefore, the device that is to propose a kind of spray liquid or pasty product of catalogue of the present invention is to remedy the shortcoming of existing scheme.
[05] more properly, the present invention wishes to realize following all or part of specific purposes.
[06] first purpose is to propose a kind ofly can provide the spray liquid of maximum sanitation degree or the device of pasty product.
[07] second purpose is to propose a kind of have the spray liquid of high spray efficient or the device of pasty product.
[08] the 3rd purpose is to propose the manufacturing and the allocator of the economy of injection device.
[09] have benefited from a kind of still the simplification and the extremely low injection device of cost, the present invention is based on the complete different designs theory of disposable injection device, and achieves the above object.
[10] more properly, the present invention is based on the device of a kind of spray liquid or pasty product, it comprises: main body, this main body have and are used for splendid attire and treat the spray product and be furnished with the parts in the aperture that is used for the product spray; Tooth bar, this tooth bar move in the tract of main body, change the volume of the parts that are used for the splendid attire product; And the mechanism of mobile rack, this mechanism comprises hinge bar and the pawl that acts on tooth bar, it is characterized in that, pawl and bar form the monolithic construction by plastic material system.
[11] for this reason, pawl can be basically perpendicular to bar and be connected on the bar in the bonding pad, and this bonding pad has some less otch of thickness and/or some zones, with the less deformable zone of formation rigidity, thus the motion that produces relative resilient between permission pawl and the bar.In addition, pawl can have and is suitable for flexibility that spray was undertaken by two stages, and wherein the phase I is the pawl distortion and spray is not carried out, and tooth bar is applied more and more stronger pushing; And second stage is to make tooth bar to advance and the spray product.
[12] bar can comprise one in its end, and this axle becomes single monolithic construction with bar with claw type.
[13] final, device can comprise the lock unit that connects between check lock lever and the main body.
[14] for this reason, the injection device main body can comprise: shape is corresponding to the position of shape shaft, and this position is used to hold this axle; And at least one elastic strip body, described elastic strip body allows the axle clip of barre in the seat groove of main body.This elastic strip body can be integrated in main body at the upper surface place in hole, and make: this flexure strip physical ability makes bar be assembled on the main body at the internal modification of this tract thus; And in the time of in tooth bar is present in the hole, elastic strip body no longer can be out of shape and barre is locked on the main body.
[15] elastic strip body can have and the rounded upper surface that matches of axle, when tooth bar is inserted into, described rounded upper surface can guarantee this axle by good location in described position.
[16] according to second kind of favourable scheme, injection device can comprise the elastic strip body that is integrated in main body and implements the detent function.The end of this detent can be positioned at the place ahead of the end of the pawl that links to each other with bar, perhaps the end part aligning of the end of this detent and the pawl that links to each other with bar.
[17] according to the third favourable scheme, the main body of injection device can and constitute by main body assembling behind at least one receptacle stand and, this receptacle stand is represented the forward part of main body, then main body is represented the rear section of main body, and these two parts can be positioned at by at least two longitudinal elasticity lamellar bodies of first in the track of second portion and be connected.The longitudinal elasticity lamellar body can have protuberantia in its end, described protuberantia can clip in the opening of another part.
[18] according to a kind of significant modification, the connection between main body two parts is locked or almost locking, thereby causes the locking of assembled member integral body, so that the disposable use of discardable device.
[19] according to another modification, the connection between two parts of main body is dismountable, thereby allows for cleaning and provision for disengagement.
[20] according to a kind of preferred mode of the present invention, the injection device of liquid or pasty product is made of four assembled critical pieces: the bar, receptacle stand, back main body and the tooth bar that comprise pawl; At least described bar, receptacle stand and back main body can be made by the injection of plastic material.
[21] according to a kind of possible modification, receptacle stand is made by transparent plastic material at least.
[22] device main body can have a leading section, and this leading section is used to receive the tool rack that has pin, and this leading section has the shape that tilts with respect to main body, and have be parallel to main body bus to allow the straight insertion of pin.
[23] according to last a kind of enforcement modification, injection device comprises a lining in the main body of back.
[24] the present invention also is intended to propose the manufacture method of injection device, and it comprises at least three steps of injection of plastic material with three separate parts of formation device, and these three separate parts are: the bar of integrated pawl, receptacle stand and back main body.This manufacture method can comprise that the injection of plastic material is to form the 4th step of tooth bar.
[25] in modification, the manufacture method of the device of spray liquid or pasty product can comprise such step: the bar that to make at least four elements that separate be integrated pawl, receptacle stand, back main body and tooth bar, and manufacture method can comprise the assemble method of described four elements, and this assemble method may further comprise the steps:
[26] a. barre is inserted on the main body of back,
[27] b. inserts tooth bar in the tract of back main body, and receptacle stand is connected the front portion of back main body.
[28] last, the present invention is intended to propose the allocator of the device of spray liquid or pasty product, it is characterized in that it comprises such step: at least four the not assembled elements that separate of provide and deliver, the i.e. bar of integrated pawl, receptacle stand, afterwards main body and tooth bar.
Description of drawings
[29] described purpose of the present invention, feature and advantage and other in the following description to the particular embodiment that provides in non-limitation mode with reference to the accompanying drawings, will obtain describing in detail, in the accompanying drawing:
[30] Fig. 1 a to 1d schematically shows the different number of assembling steps according to the injection device of an embodiment of the present invention;
[31] Fig. 2 illustrates along the schematic cross sectional views of a longitudinal vertical plane, and this longitudinal vertical plane is connected part on the main body at bar, approx in a part of passing this injection device according to the injection device middle part of embodiment of the present invention;
[32] Fig. 3 illustrates the perspective view corresponding to the device assembling of Fig. 1 b;
[33] Fig. 4 illustrates the perspective view of the device that is assembled;
[34] Fig. 5 illustrates the fragmentary, perspective view corresponding to the device assembling of Fig. 1 b;
[35] Fig. 6 illustrates the fragmentary, perspective view of assembled device;
[36] Fig. 7 illustrates along the schematic cross sectional views of a longitudinal vertical plane, and this longitudinal vertical plane passes this device at assembled injection device middle part approx;
[37] Fig. 8 is the schematic partial front perspective view according to the part of the injection device of embodiment of the present invention;
[38] Fig. 9 is according to the injection device of the embodiment of the present invention preceding profile perspective along a longitudinal vertical plane, and this longitudinal vertical plane passes the device middle part approx;
[39] Figure 10 is by the generalized section along a longitudinal vertical plane, and expression is by the operation of the injection device of embodiments of the present invention, and this longitudinal vertical plane passes the device middle part approx.
The specific embodiment
[40] according to preferred implementation, be based on four main elements that separate of assembling by injection device of the present invention, the shape of these elements allows their manufacturings to be formed by plastic material by simple injection, and therefore can very simply these elements be assembled according to the step shown in Fig. 1 a to 1d.
[41] in the first step shown in Fig. 1 a, bar 1 fits together with back main body 2b.Bar 1 comprises that being used for the horizontal upper part controlled divides and the bottom that is axle 5 forms, and this bottom is positioned in the corresponding position 6 of back main body 2b.In addition, pawl 4 links together by a monolithic construction with bar 1, and pawl 4 below and the inner extension of main body 2b backwards.
[42] in second step shown in Fig. 1 b, folder 9 by will back main body 2b is installed in the cooperation in the respective openings 8 of receptacle stand 2a, and be the front end of the assembly that obtains before receptacle stand 2a is assembled in the forward part of apparatus main body, thereby form complete main body 2.Before this operation, need treat that the barrel 10 of spray product is positioned at receptacle stand 2a inside to splendid attire.In implementing modification, product can be set in the receptacle stand before, and this product also may directly be contained in receptacle stand inside, and need not by a different barrel 10.Simultaneously, what have tooth pushes away post 3, below is referred to as tooth bar 3, and the opening of being opened by main body 2b rear portion, back 7 is inserted into, and is positioned in the cylindrical tract that for this reason is arranged at main body 2 middle parts.
[43] according to Fig. 1 c, the tool rack 12 that has pin is connected to the end 13 of receptacle stand 2a, and this end 13 is provided with the aperture that is used for the spray product.Advantageously, can carry out this connection according to the instruction of document WO 03/082387.For this reason, the front shape of receptacle stand 2a is the global shape with respect to main body 2 inclinations, but this global shape has a surface, and this surface has the bus of the axis of main body of being basically parallel to 2, thus allow pin at it crooked and be fixed on the operating position before along the straight insertion of described direction.Injection device thereby ready use: shown in Fig. 1 d, bar 1 moves down around its rotating shaft 5, causes the spray of the product of institute's splendid attire in the barrel thus under the pressure effect of the front surface of tooth bar 3.In implementing modification, tool rack 12 can be integrated in receptacle stand 2a.
[44] will describe the geometry and the technical functionality of the different elements of device now in detail.
[45] more particularly, Fig. 2 illustrates the connection between bar 1 and the back main body 2b, and allows at length to observe shown in Fig. 1 a applied element during the stage.Bar 1 comprises the cylinder-shaped end 5 that forms its rotating shaft, and this cylinder-shaped end will be installed in the cylindrical position 6 with respective diameters, and this cylindrical position is formed in the upper surface of back main body 2b of device.This cylindrical position 6 comprises the elastic strip body longitudinally 21 that is integrated in back main body 2b in its underpart, this elastic strip body is formed by the otch 24 of the part of the upper surface of the central cylindrical tract 20 of back main body 2b.At first, on unshowned two siding tracks that realize on axle 5 tops that are positioned in main body 2; Subsequently, axle 5 moves backward by sliding on these siding tracks, thereby the opening 23 of will this axle 5 guiding final position 6 into, the size of this opening 23 is less than the diameter of axle 5, under axle 5 the pressure of bar 1, elastic strip body 21 moves back to downwards in the tract 20, so as to make beam warp by opening 23 by and arrive its position 6.Subsequently, elastic strip body 21 comes back to its natural place by its elastic force, and fits with the bottom of the circumference of axle 5.
[46] in addition, bar 1 also links to each other with pawl 4, and pawl 4 29 is basically perpendicular to bar in the bonding pad.This pawl 4 ends at end 28, and this end 28 comprises the one or more teeth that cooperate with tooth bar, as will be described in detail.The remainder of pawl 4 and bar 1 forms the monolithic construction by single injecting step acquisition.Their bonding pad 29 can make: pawl 4 is according to the rotation around the connecting portion 29 of pawl and bar, and is flexibly activity with respect to bar 1.For this reason, some otch that thickness is less or some zones are set in the plastic material in the bonding pad 29, thereby form with respect to the less zone of the deformable rigidity of the remainder of bar.These otch can for example form one, and this extends on the width of bar in bonding pad 29, and are connected to pawl 4 with as its rotating shaft.
[47] last, back main body 2b has at least one detent 25, detent is the form of elastic strip body longitudinally, this elastic strip body is obtained by the otch in the main body itself 26 and therefore forms when injection body 2b, and it has an end 27, this end 27 is and the complementary sharp edge form of tooth that extends in the tooth bar 3 in the tract 20, thereby cooperates with described tooth, as will be described in detail.
[48] when bar was located in the position 6 of main body 2b, receptacle stand 2a was assembled in main body 2b, and tooth bar 3 is therefore assembled by after-opening 7, and was inserted in the vertical columniform tract 20 of main body, leaned against splendid attire up to retaining and treated on the barrel 10 of spray product.Step shown in Fig. 3 is corresponding to the step of Fig. 1 b, and it is in the middle of one in the configuration, and in this centre configuration, tooth bar 3 has been inserted into and receptacle stand 2a is ready to installation.
[49] in order to realize this assembling, back main body 2b has two lateral pieces 9 of longitudinal extension forward, and described two lateral pieces are suitable for cooperating with the complementary lower railway 14 of going up, and the described lower railway of going up nestles in the sidewall setting, as shown in Figure 5 and Figure 6 in the inside of receptacle stand 2a.The end of these lateral pieces 9 has towards the protuberantia 31 of outside orientation, and protuberantia 31 is used for cooperating with the respective openings 8 of receptacle stand 2a.When lateral piece 9 is inserted in the track 14 of receptacle stand 2a, protuberantia 31 will with the medial wall friction of receptacle stand 2a, thereby cause the strain of lateral piece 9 towards main body 2 inside.In case protuberantia 31 arrives the opening 8 with correspondingly-shaped, these protuberantias will be in place in opening under the elastic reaction of lateral piece 9, and described lateral piece recovers their primary standard distance and their parallel longitudinal direction.The elongated shape of the lateral piece 9 that is kept on its length by last lower railway 14, realizing being rigidly connected and do not exist between two parts 2a that allows in main body and the 2b produces the gap that hinders, and is supported on the active force in its use thus effectively.Other mechanical connection that is equal to of between these two parts all is all applicable.
[50] on the other hand, in the tract 20 of main body 2, insert tooth bar 3, can guide tooth bar to be bearing on the lower surface of lamellar body 21 of insertion rod 1 usefulness, thereby prevent any downward motion of this lamellar body 21 subsequently.By this method, 5 on the axle of bar 1 is locked in the position 6 of main body 2, no longer can deviate from via the opening 23 with smaller szie.
[51] according to a kind of favourable scheme, mild slope is up formed on the one hand at the top of lamellar body 21, and the axle 5 of this slope barre 1 is guided opening 23 into, to help foregoing and number of assembling steps main body 2; The top of lamellar body has circular surface 22 down subsequently, and this circular surface is corresponding to the arch section of axle 5, with the following receiving surface of the position 6 that forms receiving axes 5.It should be noted that, when being in the initial step of the assembling shown in Fig. 1 a, if the axle 5 of bar 1 is not positioned at the bottom of its position 6 fully, but for example by by being held fixing at zone line on the lamellar body 21 that is pressed in thereby moves down, then the insertion of tooth bar 3 in tract 20 can cause the power that lamellar body 21 is promoted up, this power is finally ordered about axle 5 and is slided on the slope 22 of lamellar body, until arrive axle 5 occupy whole space 6 this final position and the terminal level position of realizing lamellar body 21.Therefore the insertion of tooth bar 3 finishes the miscellaneous function of final locating rod 1, before bar is locked in this position, guarantees the good location of bar thus.
[52] according to one of device favourable embodiment, be inserted into barrel in the receptacle stand 2a arrive opening 8 places always, near lamellar body 9, thereby make the reverse motions of back main body 2b seem very difficult, even may not, this reverse motions need be out of shape lamellar body 9 by pushing protuberantia 31 again, so that lamellar body 9 is deviate from from opening 8 and choose back main body 2b simultaneously backward.This geometry hinders the disengaging of protuberantia 31 thus, and allows assembled thus main body 2 to obtain locking or almost locking, thereby makes tooth bar 3 realize locking in cylindrical center tract 20, and makes bar 1 realize aforesaid locking equally.Therefore, assembled like this device be not difficult or not too difficulty be disassembled, and guarantee different elements safety and good location.
[53] Fig. 6 to 9 illustrates assembled like this device by different way.
[54] the band tooth ends 28 of the pawl 4 of visible injection device on Fig. 7,8 and 9 is especially goed deep in the upper shed 30 of main body 2, and arriving the zone near the tooth of tooth bar 3, and the end 27 of detent 25 will be installed in the tooth of tooth bar.When the end 27 of detent 25 was located between two teeth of tooth bar, the insertion meeting of tooth bar 3 in tract 20 was with the snap sound.Because the position that the end 27 of detent 25 occupies is more forward a little than 28 present positions, end of pawl 4, thereby enough advance so that can be by bar 1 actuating the time when tooth bar, just produce the snap sound, and this snap sound can tell the user tooth bar enough to move ahead.
[55] Figure 10 illustrates the operation of injection device.By means of the especially flexible nature and the selected geometry of the connecting portion 29 place materials useds between pawl 4 and bar 1, bar 1 is resisted against on the receptacle stand 2a by pushing downwards around the rotation of axle 5, and this makes pawl 4 rest on the tooth bar 3 by the bonding pad 29 around this pawl and bar strain takes place.This motion of pawl 4 allows in its band tooth ends 28 that cooperates with the tooth of tooth bar 3, and generation is to the thrust of tooth bar and tooth bar is advanced in tract 20.In the embodiment that proposes, the end 28 of pawl 4 has: a circular portion, and the last cylindrical shape of itself and tooth bar 3 is complementary; And three toothrows, be used for cooperating with three teeth of tooth bar 3 simultaneously and guarantee good fit between the two elements 3,4.
[56] when bar is released, pawl 4 applies elastic-restoring force to its initial position, and barre 1 is guided its initially high position into.In this stage, detent 25 stops tooth bar to return backward.For this reason, the shape of the end 27 of detent and the tooth of tooth bar has the slope, described slope allows them to slide on the progressive direction of tooth bar, and cause that pawl 25 is out of shape downwards, tooth up to tooth bar is therefrom deviate from, this thus cause detent again elasticity be positioned in next tooth, and with to the progressive snap sound of user proof tooth bar.On the contrary, the front surface of the end 27 of detent 25 has vertical substantially surface, matches with the corresponding vertical surface of the tooth of tooth bar in this vertical substantially surface, prevents the fastening of any motion backward of tooth bar thereby produce.Advancing of tooth bar 3 is used to promote to be bearing in the piston that is loaded with on the space 10 for the treatment of the spray content.
[57] according to one of device favourable embodiment, bar 1 and pawl 4 are made by the injection of plastic material.Therefore, when starting bar, pawl 4 beginning strains, and on tooth bar, apply more and more stronger active force, finally advance in second stage up to tooth bar.This two stage model of action can reduce pressure effect more or less stronger on the bar, and make the product spray comparatively stable and gentle, under the situation of syringe, improve patient's comfort level thus.A part of pushing active force too strong to bar will be absorbed by the distortion of device element.
[58] just aforesaid, make injection device fast and low cost method is, separate four different basic building blocks of manufacturing installation by injection moulding: bar 1, receptacle stand 2a, back main body 2b and tooth bar 3.Employed material can be polyamide, polypropylene, ABS plastic (acrylonitrile-butadiene-styrene copolymer) or other any plastic material.The described device that recyclable plastic just abandons after also very being suitable for using.Advantageously,, also can use transparent plastic material, so that can observe the product volume of waiting until spray especially for receptacle stand 2a.Last step of manufacture method relates to the assemble method to these members subsequently.Yet the transportation and the dispensing of device for convenience advantageously proposes the described device of dispensing under unassembled state, with just before using the scene assembled.Because with reference to the convenience that the described member of figure 1a to 1d is assembled, described method thereby become possibility.On the other hand, this allows the end user can select it to wish the product of injection.
[59] in implementing modification, above-mentioned member can be made discriminatively and with different materials.Tooth bar 3 can for example be made by rustless steel.
[60] according to unshowned second embodiment of device of the present invention, can on the basis of Fig. 7 of document WO 2005/007224, obtain, this second embodiment is different from last embodiment part and is: tract 20 has a convex shoulder, and this convex shoulder for example is used for receiving with politef or other plastic material lining made of polyether-ketone (PEEK) for example.
[61] this injection device can be used in medical field, in order to inject for example preparation of anesthetics in hard tissue, perhaps in order to dispensing binding agent, resin or amalgam.For example, it is just very meaningful to be used for the application of anesthetic syringe of dental field.It also can be used in the medical assistance field, in order to the collagen of dispensing quantification.It can also be used in micromechanics and the field of jewelry, in order to finish bonding or microbonding or discharge some products.
[62] last, described scheme has reached desirable purpose well and has had the following advantages:
[63]-and the existing of the bar that is completely fixed in the locking mode, can allow the spray that reaches good;
[64]-described device is based on simple structure, have less element, both do not had that spring does not have separately yet and axle independently, by can be compatible the certain methods used of recyclable material be easy to realize and cost lower: manufacture method so very economical and meet the notion of disposable apparatus, thus eliminated the problem of cleaning;
[65]-and constituting this device with the less element that is easy to assemble, this allows to make things convenient for dispenser, and can install in any stage, even in the needs injection.
[66] design according to the notion of device of the present invention based on disposable apparatus.Yet, carrying out the use that non-once abandons by the clean method that utilizes prior art, therefore this can not exceed scope of the present invention yet.In fact, the simplicity of described device and make its dismountable probability---for example by changing connection between main body 2a and the 2b to make things convenient for deviating from of arm 9, can allow advantageously to realize this device, with thinking the detachable use of carrying out cleaning device, and this is owing to the simple of apparatus structure being simplified.
[67] in addition, preferred implementation is being described before.Other embodiment of the present invention also is possible: some element extremely simplified that only adopts described device again---wherein have bar 1-pawl 4 assembly, with bar be assembled in apparatus for assembling on the main body 2, the main body that constitutes by two major part 2a, 2b, detent 25 etc., this allow to obtain improved, simplify and injection device cheaply.
Claims (23)
1. the device of spray liquid or pasty product, described device comprises: main body (2), described main body have and are used for splendid attire and treat the parts of spray product (2a), and these parts are furnished with the aperture (13) that is used for the product spray; Tooth bar (3), this tooth bar move in the tract (20) of described main body (2), and change the volume of the described parts (2a) that are used for the splendid attire product; With the mechanism that moves described tooth bar (3), this mechanism comprises hinged bar (1) and pawl (4), so that act on described tooth bar (3),
It is characterized in that described pawl (4) and described bar (1) form the monolithic construction of plastic material system.
2. according to the device of described spray liquid of claim 1 or pasty product, it is characterized in that, described pawl (4) is basically perpendicular to described bar (1), and (29) are connected to described bar (1) in the bonding pad, this bonding pad has less otch of thickness and/or zone, with the less deformable zone of formation rigidity, thereby allow the relative resilient of described pawl (4) and described bar (1) to move.
3. according to the device of described spray liquid of claim 2 or pasty product, it is characterized in that, described pawl (4) has and is suitable for flexibility that spray was undertaken by two stages, wherein the phase I is: described pawl distortion and spray is not carried out, and on described tooth bar (3), apply more and more stronger pushing; And second stage is: described tooth bar (3) advances and carries out the product spray.
4. according to the device of claim 2 or 3 described spray liquid or pasty product, it is characterized in that described bar comprises axle (5) in its end, described axle forms single monolithic construction with described bar (1) and described pawl (4).
5. the device of each described spray liquid or pasty product is characterized in that this device comprises the lock unit that is used to lock connection between described bar (1) and the described main body (2) in requiring according to aforesaid right.
6. according to the device of claim 4 or 5 described spray liquid or pasty product, it is characterized in that described main body (2) comprising: position (6), the shape of this position are corresponding to the shape of described axle (5), and this position is used to hold described axle (5); And at least one elastic strip body (21), described elastic strip body allows axle (5) clip of described bar (1) in the seat groove (6) of described main body (2).
7. according to the device of described spray liquid of claim 6 or pasty product, it is characterized in that, described elastic strip body (21) is integrated in described main body (2) at the upper surface place of described tract (20), make: this flexure strip physical ability is in described tract (20) internal strain, so that described bar (1) is assembled on the described main body (2); And in the time of in described tooth bar (3) is present in described tract (20), this elastic strip body no longer can be out of shape and described bar (1) is locked on the described main body (2).
8. according to the device of described spray liquid of claim 7 or pasty product, it is characterized in that, described elastic strip body (21) has the rounded upper surface (22) that matches with described axle (5), when inserting described tooth bar (3), described rounded upper surface guarantees that this good location is in described position (6).
9. the device of each described spray liquid or pasty product is characterized in that in requiring according to aforesaid right, and described device comprises and is integrated in elastic strip body (25) described main body (2), that realize the detent function.
10. according to the device of described spray liquid of claim 9 or pasty product, it is characterized in that, the end of described detent (27) be in the described pawl (4) that links to each other with described bar (1) end (28) the place ahead or be in the identical bits height with the end (28) of described pawl (4).
11. the device according to each described spray liquid or pasty product in the aforesaid right requirement is characterized in that, described main body (2) is assembled by an at least one receptacle stand (2a) and a back main body (2b) and is constituted.
12. device according to described spray liquid of claim 11 or pasty product, it is characterized in that, described receptacle stand (2a) is the forward part of described main body (2), and described back main body (2b) is the rear section of described main body, and these two parts are connected like this: at least two longitudinal elasticity lamellar bodies (9) of first are positioned in the track (14) of second portion.
13. the device according to described spray liquid of claim 12 or pasty product is characterized in that, described longitudinal elasticity lamellar body (9) has protuberantia (31) in its end, and described protuberantia energy clip is in the opening (8) of another part.
14. device according to described spray liquid of claim 13 or pasty product, it is characterized in that, connection between two parts of described main body (2) is locked or is almost locked, thereby causes the locking of assembled member integral body, so that the disposable use of discardable described device.
15. the device according to each described spray liquid or pasty product in the claim 1 to 13 is characterized in that the connection between two parts of described main body (2) (2a, 2b) is dismountable, dismantles described device to allow for cleaning.
16. device according to each described spray liquid or pasty product in the aforesaid right requirement, it is characterized in that this device is made of following four assembled critical pieces: the bar (1), receptacle stand (2a), back main body (2b) and the tooth bar (3) that comprise pawl (4).
17. the device according to described spray liquid of claim 16 or pasty product is characterized in that, described at least bar (1), described receptacle stand (2a) and described back main body (2b) are made by the injection of plastic material.
18. the device according to each described spray liquid or pasty product in the aforesaid right requirement is characterized in that described at least receptacle stand (2a) is made by transparent plastic material.
19. device according to described spray liquid of claim 18 or pasty product, it is characterized in that, described main body (2) has the leading section (13) that is used to receive the tool rack (12) that has pin, this leading section has the shape with respect to described main body (2) inclination, and has the bus that is parallel to described main body (2) so that allow the straight insertion of described pin.
20. the device (1) according to each described spray liquid or pasty product in the aforesaid right requirement is characterized in that this device comprises lining in described back main body (2b).
21. the manufacture method of the device of spray liquid or pasty product is characterized in that, described manufacture method comprises such step: the bar (1) that to make at least four different elements be integrated pawl (4), receptacle stand (2a), back main body (2b) and tooth bar (3); And described manufacture method comprises the assemble method of described four elements, and this assemble method may further comprise the steps:
A. described bar is inserted on the described back main body (2b),
B. described tooth bar (3) is inserted in the tract (20) of described back main body (2b), and described receptacle stand (2a) is connected the front portion of described back main body (2b).
22. manufacture method according to the device of described spray liquid of claim 21 or pasty product, it is characterized in that, described manufacture method comprises at least three steps of injection of plastic material with three different parts forming described device, and three different parts of described device are: the bar (1) of integrated pawl (4), receptacle stand (2a) and back main body (2b).
23. the manufacture method according to the device of described spray liquid of claim 22 or pasty product is characterized in that, described manufacture method comprises that the injection of plastic material is to form the 4th step of tooth bar (3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0701649A FR2913341B1 (en) | 2007-03-07 | 2007-03-07 | DEVICE FOR DISPOSABLE EJECTION OF A LIQUID OR PASTY PRODUCT |
| FR07/01649 | 2007-03-07 | ||
| PCT/IB2008/050593 WO2008107813A1 (en) | 2007-03-07 | 2008-02-19 | Disposable device for ejecting a liquid or pasty product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101626795A true CN101626795A (en) | 2010-01-13 |
| CN101626795B CN101626795B (en) | 2013-11-13 |
Family
ID=38596566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800074366A Active CN101626795B (en) | 2007-03-07 | 2008-02-19 | Disposable device for ejecting a liquid or pasty product |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US8851336B2 (en) |
| EP (1) | EP2129418B1 (en) |
| JP (2) | JP2010520003A (en) |
| KR (1) | KR101518460B1 (en) |
| CN (1) | CN101626795B (en) |
| AU (1) | AU2008222407A1 (en) |
| BR (1) | BRPI0807123B8 (en) |
| CA (1) | CA2679152C (en) |
| CU (1) | CU23969B1 (en) |
| DK (1) | DK2129418T3 (en) |
| ES (1) | ES2581740T3 (en) |
| FR (1) | FR2913341B1 (en) |
| GE (1) | GEP20125615B (en) |
| HU (1) | HUE030284T2 (en) |
| IL (1) | IL200762A (en) |
| MX (1) | MX2009009411A (en) |
| PL (1) | PL2129418T3 (en) |
| PT (1) | PT2129418T (en) |
| RU (1) | RU2475278C2 (en) |
| TN (1) | TN2009000364A1 (en) |
| UA (1) | UA97137C2 (en) |
| WO (1) | WO2008107813A1 (en) |
| ZA (1) | ZA200905823B (en) |
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| CN104203316A (en) * | 2012-04-19 | 2014-12-10 | 赛诺菲-安万特德国有限公司 | Assembly for a drug delivery device and drug delivery device |
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| CN103648557B (en) * | 2011-07-07 | 2016-06-22 | 李喜永 | The pressure of syringe produces and pressure-display device |
| JP6212037B2 (en) * | 2011-07-15 | 2017-10-11 | サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Drug delivery device including locking interface, cartridge holder, and locking interface |
| ITBS20110181A1 (en) * | 2011-12-28 | 2013-06-29 | Paoli Ambrosi Gianfranco De | FLUID DISPENSING DEVICE |
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| EP3147034A1 (en) | 2015-09-25 | 2017-03-29 | Sulzer Mixpac AG | Applicator for ejecting doses of a flowable component |
| WO2017076634A2 (en) * | 2015-11-06 | 2017-05-11 | Medmix Systems Ag | Dispensing device with lateral inlet port and advancement mechanism |
| CA3058506C (en) | 2017-05-02 | 2021-12-07 | Eli Lilly And Company | Injection device with plunger arrangement and converging ramps |
| US11123494B2 (en) | 2017-08-22 | 2021-09-21 | KB Medical, LLC | Exostructure to assist in accurate syringe injection |
| US10881809B2 (en) | 2017-08-22 | 2021-01-05 | KB Medical, LLC | Exostructure to assist in accurate syringe injection |
| KR102068877B1 (en) * | 2017-11-03 | 2020-01-21 | 인제대학교 산학협력단 | Automatic injection syringe and auxiliary device for automatic injection |
| FR3073354B1 (en) | 2017-11-06 | 2019-10-18 | Safran | COMPOSITE COMPONENT WITH INTEGRATED INSTRUMENTATION ELECTRONIC CIRCUIT AND METHOD FOR MANUFACTURING THE SAME |
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-
2007
- 2007-03-07 FR FR0701649A patent/FR2913341B1/en not_active Expired - Fee Related
-
2008
- 2008-02-19 MX MX2009009411A patent/MX2009009411A/en active IP Right Grant
- 2008-02-19 US US12/529,973 patent/US8851336B2/en active Active
- 2008-02-19 CA CA2679152A patent/CA2679152C/en active Active
- 2008-02-19 PT PT87100863T patent/PT2129418T/en unknown
- 2008-02-19 HU HUE08710086A patent/HUE030284T2/en unknown
- 2008-02-19 DK DK08710086.3T patent/DK2129418T3/en active
- 2008-02-19 GE GEAP200811497A patent/GEP20125615B/en unknown
- 2008-02-19 BR BRPI0807123A patent/BRPI0807123B8/en active IP Right Grant
- 2008-02-19 RU RU2009137021/14A patent/RU2475278C2/en active
- 2008-02-19 EP EP08710086.3A patent/EP2129418B1/en active Active
- 2008-02-19 JP JP2009552305A patent/JP2010520003A/en active Pending
- 2008-02-19 AU AU2008222407A patent/AU2008222407A1/en not_active Abandoned
- 2008-02-19 ES ES08710086.3T patent/ES2581740T3/en active Active
- 2008-02-19 CN CN2008800074366A patent/CN101626795B/en active Active
- 2008-02-19 PL PL08710086.3T patent/PL2129418T3/en unknown
- 2008-02-19 KR KR1020097019272A patent/KR101518460B1/en active IP Right Grant
- 2008-02-19 WO PCT/IB2008/050593 patent/WO2008107813A1/en active Application Filing
- 2008-02-19 UA UAA200909079A patent/UA97137C2/en unknown
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2009
- 2009-08-21 ZA ZA2009/05823A patent/ZA200905823B/en unknown
- 2009-09-02 TN TNP2009000364A patent/TN2009000364A1/en unknown
- 2009-09-03 CU CU2009000153A patent/CU23969B1/en active IP Right Grant
- 2009-09-06 IL IL200762A patent/IL200762A/en not_active IP Right Cessation
-
2013
- 2013-11-05 JP JP2013229192A patent/JP5815639B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104203316A (en) * | 2012-04-19 | 2014-12-10 | 赛诺菲-安万特德国有限公司 | Assembly for a drug delivery device and drug delivery device |
| US10065000B2 (en) | 2012-04-19 | 2018-09-04 | Sanofi-Aventis Deutschland Gmbh | Assembly for a drug delivery device and drug delivery device |
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